Lamp-lock.



.To ail fwiom may Conwy l Bs knowzi that i., VLMM Emu. i LUGHLDI, n citizen of die il iisd residing at Middletown.

65' 5 Ohio, have inventori oeioi mpioeiiieiits in Lamp-Lc following is speoiiioo This inveliozi ieizee io is te. devices for looking iooaii'lescoot e'ieotriv to 55 l@ lamps in iieir sockets so 11o pre1-teni; authorized removal of o iaigos. looks have been oriangou to p o key, butJ tiles@ looks eii it irifepsiideii' of the imite; ooijpiiiever having a key oi' oziiei Colom isis: a mezolho strap iii oieciioai 70 l5 Gfwhichhb mgyOpn {RQ} C oonneotiozi with commi boit this strap have also been so arranged iiaf being above lower porcelain disk 2: l@ a could iioi; be removed i'ofii SoC-ooi. metallic strap: il, binding; screws cept by breaking die ioop, i 'oi the zifo incoming Wires which one. fh@ Limp giggle-53 t0 i? li t0 ii'i@ ifllp i2? iOiiGW 5'5 2o Loin was undosiiebie Mic ping connected to tho ioiiei' en@ of pi'oi'sd lamp lloch is o 10 and eiiegofiing down through low-si' measurm on die order o fisii :2: 2.3, a piiwaoi o1 soie ioek, in hfit e "mi l progeoting from the lower sod of plug from its socke 3.2: Li, the. outoi shell of *ehe .gsoeiai soo iet: g@ ste-.nds tho *n* i lf3. iiie domo of iie geneioi sooie: i6, iie My inv@ .h iiiieoici opening in 'tias dome by mooiisoif' me@ of am? son which fe @snel-a?. sooke may otmoiieo sock iiowii form. insulating disk having s imoe engaged by die pini. 13, Tegoed po 'itioo of sooket pfoooid Y to he other ports of the Ali the. @o Figure l is a ortiozii dianie .2 poi s ilus for specifically ieeriefl o fo to of a iam'p socket embof f' zake op lomp sooke of rather Woll known che 'section boing taken ii :iie constiuoion in which, by foison of me Z1 of Figs. 2 and 3: i pion uisocket pi'ogei bein capable of .freely foto? v psy poioeinin disk: Fig. 3 einen oi' t 111g to the left, or oit-mnd sciewm'iso, the 40 lowerv porcelain disk: Fig. s pian. oi' the honk of the lamp cannot be misoi'ewoci from too disk of the socket proper: Fi 5 :i veii@ socket. The current from one of the, iiitioal section of the spring pawfi in the gione coming Wires will goto spring 7 and thence of iine 7) of Fig. 3: and Fig. 6 a. panoramic io ilo oentizii eat of the. lamp, While he ssction of the. top-disk of the socket pi'oyei' ouiieoii 'om the other inoomiit@ Wiis Wiii 10o tuinen on the. circulaiiiiio c of :fig si, the. o through the spring piuiigei 2inring i8 ends oi' this panoramic section boiw g indi;- eiid screws 6 to the socket proper and zhenceoaed by the iine Z and the dirs )tion w to il e ziieefiod met-allie ooiizi oi the shank being indioued i iiiio arrow o in 'he drawing- L inficzee. 50 propo? 'which is hrezus :i

the thi-ended shank of the. screwed.: Q, o iowei iixsd poi -e im@ as usuai. As hus esmoeo. is maoigosi "that o. izmip once soiewe the socket oouii not be misoiewed thoierom owing to the fact abat the sooke o'ogior is isiiee to urii wih tho izimp. But it 1s equaily nosed Comenta-ica over yiks :socket: an immifes that a lamp oould. noob@ :satisaoopper fixed poioeioio disk disposed above toiiiy screwed into `he sooke, owing to the lio the lower porcelain iiisii: di, bolts seeming ifi'sodom with which the socket aopsz may fiile' two porcelain disks ogetiier: 5, iii@ top In proceeding I will use the expression to the right or right as indicating that direction of motion involved in screwing the lamp into a "socket and I will use the expres sion to the left7 or left l as indicating that direction of motion involved in unscrewing a lamp from a socket.

Proceeding with the drawing: 19, indicates a radial shoulder upon the upper surface ol ring 1S, this shoulder facing to the right, or in s1icli-tli1ection as to come against spring plunger 13 when the socket proper turns to the right: 20, a second similar radial shoulder on the ring: 2l, a third similar' radial shoulder on the ringft'his third shoulder, however, heing an insulating insert in the ring instead ot in the metal of thering itself: 2;), a segmental insert of insulating material ferential continuation ot' ring 18: 23, a radial shoulder on ring 18, hut -facing to the lett, or in such direction as to come against spring plunger 13 when the socket proper rotates to the left: 4, a segmental ball-race in ring 18, between shoulders 2O and 23: 25, a hall adapted to roll freely in this segmental slot and of such size that its upper surface Will project at least as high as shoulder 23: 2G, a .second hall in the segmental slot: and 27, surfaces of ring 18 leading 'from the foot of one of the rightwardly presenting shoulders. to the top of the succeeding shoulder. he plunger 13 should he prevented, hy some means, from descending into hall-race 24, which prevention in the present case is effected hy having the plunger' ot' a diameter somewhat in exeessof the width ot' the hallrace.

lf the shank of a lamp be started to screw into the socket proper, the latter, heing t'ree to turn, will most hkety turn with the shank but Ver'r uicklywill he arrested by one ol the shoul ers 19, 20, or 21, comin;r in contact With springplunger 13 whereupon the lamp may he screwed homo'. p guining, new, that an attempt be made to unscrew the lamp from the socket, if spring' plunger il appens to he engaging one of the inclined surfaces 27, the turning of the lamp to the left will cause-the socket proper to turn to the lett, the spring plunger simply riding up on the inclined surfaces after the manner of a pawl on the rear ot' a ratchet tooth. It the spring vplunger happens to he on that portion ol' the ring carrying the. halls, asI

the plunger is illustrativi in t'ull lines in Fig. (i, the phi'iger will ride u p on the halls and over shoulder if), precisely as itrode up on the inclined surl'accs. ln other words,

owing to the ratchet character of the con# struction, the lamp could be turned to the le'lt indefiniti-ly without unscreiving yfrom its sot-loft. 'los-.thc socket would turn with it. The only \\a v to lock the socket proper secured to disk 5 to form a eircum-y the inclined upperV4 -it serves a good office circuit hy rotating it terni socket against rotation. so that the lamp can he unscrewed, is to have the leftward shoulder come intoengagcrnent with the spring plunger 13, and the trick is to accoinlisli this engagement. ignore. ior thc'p ,y it., second hall Bil. and assuine that hall 2.3 only is present. By rotating the lfnnp, and with it the-socketproper lo thc lett, the :spring plunger .vill eventually reach hall 35, and this l'act nill lic ki'own. to thc initiated, h y thc feel ol` thc thing. 'l`hc springl riding up on thc nali. will reach the position indicated hy :he i'ilungcr in dcttcd lines in Fig. 6. lt must go past the hall and theI lel'tward turning ol the lampninst cease. Now, by turning the lamp to the right, the ring 18 turns with it. oi cmnsc, and hall 9:7, coming against the plunger, heroines pushed to the left it' it has not ali-earl;7 moved to the lett, and the spring plunger goes downto the left of vshoulder 23. rl`he ring and the socket proper are now lol-hed against lettward turning and the. lamp may ne rea-.'lil-l." unserewed from the socket. r1`he second hall 26 has little to do with the operati except to embarrass and hinder one whdmav think he is wist@ t'or` feeling 'hall 2G, he may' go through the ahove described hack- Ward operation, which will do him no good at all, for hall 25 is the one yrnioulder 19 to'pcrinit the screwing in of the lamp, and shoulder Q3 to permit the unscrcwing of the lamp, are all of the shoulders needed, shoulders 9.0 and 2l serving simply to add to the complexity ot' the tri`- lling little shocks that may he felt in attempting to unscrew the lamp, and there muv he as many ol these non-esscntial shoulders as is judged liest.

insulating patch Q2 in the ring on which the spring plunger hears is not essential but 1n some cases. In the idle attempt to unscrew the lamp, as has heen explained, ring 18 turns with it and nach vtime the spring plunger reaches insulating patch 22 the current tov the lamp is cut ol' and is retstahlished when the metallic portion ol' the ring gets under the spring plunger. This scheme serves as a switch hy moans of which the lamp may he eut out of without' unscrewing it n particle from its socket, but in some cases r'it serves, hy the flashing of the lamp, as

indicating that an unserer: the lamp.

In the incandescent electric lamp 'art the is applied to thea general structure attached to thevlxture to serve in receiving the lamp, and in the present case that term would be. applied to the entir'e structure set forth. have referred to the direct lamp-receiving vfeature as the socket proper, to distinguish attempt is being made to itv from the structure as a whole. In 'the present case the socket proper is rotatable plunger,A

to he dealt with.

In the present easel/ft: ih" cd by 'thr- Cond :fork/ct mi er t dence can' 'exft of the llO it to the top of the second shoulder as the socket prope" turned to the left and to be lrolled buck to inactive, position so as to per'- nlit llie pmvl to descend to the left of the serond sliouliiler when the socket proper is turned to the right trono position corre* spendingl with the rziie'oil position of the pawl, combined ,uibstentinlly as set forth.

6. A ln1np-sooketcomprising, n head, a socket proper' secured to the heed and roti table relative thereto, a Atiret shoulder cnrriod by the ,socket proper and presenting itself to the right, :1 second shoulder carried by the socket proper and presenting itself to the left. :L spring pnwl ,snpijiorted by the head :1nd adopted to convey current to the ,Joliet proper und to `engage the first shoulder :md arrest the ,turning of the socket proper to the right :incl to engage tlie second shoulder :1nd arrest the torninov of the Socket proper to the lefl'` :i bull-rame rurriod by the soolet proper, :i lmll rolling` in smid bull-race :it the loft of the second shoulder and adapted to here snidvpzin'l rifle up it to the top of the second shoulder :is tlie socket proper is tiirnoii to the left :nml to be rolleil bnc-k to inactivo position so :is to permit tile paw] to descend to the left ol` llie seeonil shoulder when ille fiorket propel' is turned to the right from ponilion rorrosponding with the ruim-il position ol' tlio p;i\\'l,'nnd n second bull f'orrieilby tlw soi'lntproper :it the left of tln'-, lim-:t lmll, f :ombinoil substantially' :1S set iortli. H

7. A lzinlp-lorl romprisingf, n breil. :l socli'ot proper Hei'ilrool to ille lwml unil rotutnblo lrlzltiw {lu-rollo, l lirsl; slioillilor (frirrioil by lil: sovlcol proper :mil presenting itsel'l' lo tlix` rigjlit. mlililiioiml slioulilrrs (':lrrieil lili' tlii'; sof'lwt proper :mil presenting themselves loo ille right, :i fiw'oxul hlioiililer ':lrrirrl by the sovli'ei' proper nml presenting itself to ille loft. :i springr pizwl .elipporlml bi' ille liornl :nul :ul.-xpi'eil1 .x convoy' current to llio souket proper :ind to engage either the first shoulder or the additional sliouliers and arrest the turning of the socket proper to the rightand v'to engage the second shoul- Cler and erregt 'the turning of the socket proper to the leihen@ movable lifting device Carried by the sooket proper at the left oi' the sond shoulder and adapted to raise said pawl 'to the typ of the second shoulder :is the socket proper is turned to the left and te retreat to inactive position so as to permit the pziwl to deseencl to the left of the second shoulder when turned to the riglit'from position corresponding with the raised position of the pnwl, combined substantially as set fort-l1.

A lamp-lock comprising, n head, a socket proper secured to the head and rotatable relative thereto, e. Ci'roumferentiolly interi-muted ring carried by the socket proper, first shoulder carried by the ring und presenting itself to the right, a Seeo'nd shoulder carried by by the head and conve;7 current to tbe socket proper and to engage the first shoulder and arrest the turning of the socket und to engage the second shoulder and nrrest the turning of ithe socket proper to the left, und a. movable lifting device Carried by tbe socket proper :it the left of the second shoulder und adapted to raise said pzm'l to.

lli'itnesses: l

AMY 'lolniuinmri? im MAY OWEN.

the socket proper isf the ring and presenting' itself to the left, a spring paivl supporte@y end adapted to engage the ring proper to the right' 

